Questions tagged [visualization]
Constructing meaningful and useful graphical representations of data. (If your question is only about how to get particular software to produce a specific effect, then it is likely not on topic here.)
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Can t-SNE be applied to visualize time series datasets
I have multiple time-series datasets containing 9 IMU sensor features. Suppose I use the sliding window method to split all these data into samples with the sequence length of 100, i.e. the dimension ...
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Changing the predicted variable from price to price/km due to better visual correlation
I'm working on a dataset of Uber Rides from Kaggle. Of the important variables there are pickup and drop-off coordinates, passenger count, datetime of pickup, distance and the final price. I'm ...
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Change line type in gpplot in R
Context: I have two variables under emotion_dict that I am graphing in the same line graph.
Problem: However when I change the linetype in geom_line, it changes the appearance of both variables.
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Evaluate the result of a Zero-sum game
I'm currently working on an AI playing Mandarin using Minimax. I can extract this dictionary from a game where 2 AI with different depth plays with each other:
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Suggestions on how to visualization this data
I was hoping to pick people's brain on better way visualize data that appears like this:
Two categorical variables
One continuous variable
I'm trying to visualize this data in way that is more ...
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Graph legend for plot in Base R for class differentiated data gives incorrect representation of actual category
I am new to R. While working on my university assignments, I found that legends for Base R plot do not show correct information, hence I switched to ggplot2 wherever legends were needed.
I observed ...
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Is python & tableau enough to become data analyst? [closed]
Currently, I working as SEO Analyst. I want to become a data analyst and so I have started learning python with data science from udemy course.
Can Anyone help me with guidance to learn data analytics?...
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Cluster Evaluation with Jaccard and Rand Index
I've clusterized my data according to 3 criteria in 3 groups. I used kmeans to obtain those cluster so the label for each cluster is random and changes at each script run.
To evaluate the consistency ...
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tableau view with dimensions totals, static values and calculation
I try to create a table like the one following.
I got 1 line product, 1 dimension "zones" and I want to add few columns : total for pieces on a line, a fixe value for a product(stock mini), ...
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Data Art/ Data Visualization Art/ Information Art
Few days ago, I learned about data art/ data visualization art/ information art. I think I have interest in it. I want to see how I can use my data science skills in this area. However, I don't know ...
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How can I plot a 3d antenna radiation pattern in python?
I'm trying to plot a 3d antenna radiation pattern using python (or js if possible) but my code is not working.
Here is what my dataset looks like:
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Scatter plot with Y axis labels like Gantt chart
Here is a Gantt chart visualization by Amcharts, from https://www.amcharts.com/demos/gantt-chart-dates/ :
I want this same kind of viz, but with dots/circles for timestamp based data points instead ...
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Visualize 2D data in a completely filled square 2D grid, along two ordered axes
For visualization purposes, I would like to show an array with 2D data in a completely filled (near) square 2D grid, along two ordered axes.
If the array has 10,000 items and each item consists of two ...
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What tool can I use for produced this type of lines in a multiple line graph?
I was viewing a video about the declination in fertility rates when I saw a good line chart. This is a multiple graphs line and each line have different form this can be useful for readers don't get ...
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What package, software or particular tool produced this bar plot?
Would anyone be able to identify the package or tool used to created this particular bar plot? It has a distinctive font.
Source (with paywall): https://towardsdatascience.com/stopping-covid-19-with-...
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How can I improve this chart?
I have a chart like this:
There are some problems that I am stuck:
Some columns value are very small compared to others, so I cannot identify whether
they are zeros or not (I used logarithm scale, ...
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My data is highly overlapping, but when I apply logistic regression, it is giving an impressive accuracy of 79%. Why?
Logistic regression is supposed to work well only on data that is linearly separable. As we can see in the pair plot, the data points heavily overlap. The logistic regression model is in fact showing ...
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Loading medical imaging data from multiple folders
I have a fairly basic mathematical and implementational understanding of ML algorithms and CNNs, and I am trying to think of an approach for this task: https://www.kaggle.com/c/rsna-miccai-brain-tumor-...
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Identifying the best group that are most productive
can you please give some idea to solve this problem, Below is my data, I want to identify the best inventory based on the CPM(target value) .. For example: I want to be able to say - Business section, ...
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TSNE parameters
Trying to tune the parameters of
sklearn.manifold.TSNE(n_components=2, *, perplexity=30.0, early_exaggeration=12.0, learning_rate=200.0, n_iter=1000, n_iter_without_progress=300, min_grad_norm=1e-07, ...
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How to visualize optimization problems' feasible region?
Is there any tool to visualize the feasible region when given a set of Linear equations (equalities and inequalities). If not, can anyone suggest a way to visualize it?
If I am going to do it myself ...
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What are descriptors
I am very new to data science, and r programming specifically. Could some explain what a descriptor in data science is? In particular, what are the differences between a 2d and 3d descriptor?
Thank ...
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Geospatial clustering plot with zoom in Python?
I need to construct an interactive clustering plot. Ideally as the user zooms in the clusters would split-up into smaller clusters at certain zoom levels.
I am planning to have several discrete levels ...
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How to visualize a hierarchical clustering as a tree of labelled nodes in Python?
The chapter "Normalized Information Distance", visualizes a hierarchical clustering as a tree of nodes with labels:
Unfortunately I cannot find out how to replicate this visualization, ...
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How can I make live Parallel Coordinates Plot that could show labels for the lines on hover?
I'm using parallel coordinates plot for visualization of my outliers. Is there a way to create them so as to show some information(another column content) about the lie on hovering?
Plotly has ...
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Finding correlations between plant features?
I have a list of flowers, and each has a color and a fragrance intensity. Each data row has a color and intensity for one breed of flower, like this:
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UI-based Tool for Qualitative Evaluation of Data Quality
Dear DS StackExchange community,
I'm currently searching the interwebs for a (near-)ready-to-use solution, to perform a qualitative evaluation of extracted features from video data. In my head the ...
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Theoretical differences between KPCA and t-SNE?
I (think I) understand the underlying principles of most dimensionality reduction methods (MDS, IsoMap, t-SNE, Spectral Embedding, Diffusion maps, etc...).
Some of the algorithms I use the most are ...
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What data visualization for N elements switched from x to y
Is there a recommended vizualisation for this kind of data:
...
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Why must x and y axis be the same length?
I am getting started with visualization, but right at the start I am having a serious conceptual problem. Repeatedly, I get the error ‘x and y must be the same size’ / ‘array must be the same length’ /...
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How to increase the accuracy of an imbalanced dataset (not precision)?
There's an imbalanced dataset in a Kaggle competition I'm trying. The target variable of the dataset is binary and it is biased towards 0.
0 - 70%
1 - 30%
I tried several machine learning algorithms ...
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What to do when the target variable does not correlate with any of the independent variable in a dataset?
I am quite new to data science. I am trying to use Logistic Regression to predict my target (either 1 or 0).
But the problem is when I use a heatmap to find the correlation between the columns and the ...
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Ideas to visualise historical map data/transportation/logistics/scheduled events?
I have many data points which span over a decade and they look similar to this:
Maybe someone has some cool interactive and/or not interactive ideas on nice representations of such data? I was ...
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Is it a good idea to use parallel coordinates for visualising outliers? [closed]
I tried using parallel coordinates to visualize outliers. Is it fundamentally correct?
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Visualise KMeans clusters in 2d, when number of input features is greater than 2
I am using KMeans clustering in Python (Scikit-learn) with around 70 input features per sample and a little over 1,000 samples. It is performing rather well, which is good. However, I would quite like ...
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How to plot a line graph with extreme value changes and a large data set?
I am trying to visualize the data that I have recorded with a benchmark. The problem that i have is that the value changes are rather big and a single data set consists of 10.000 values. I tried to ...
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How to do exploratory data analysis on a database
In all courses, the focus is mainly on building models from an already clean dataset that is in a csv file.
If I have a database, Postgres, with a table that has ~10 million rows, what is the best way ...
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Tools/techniques for exploring 2D, 3D level sets in high D spaces
I have some 5D data which I need to visually explore. Currently, I am plotting a 3D grid of 2D graphs for various values. Basically, I have N images each containing an NxN matrix of graphs... kind of ...
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Visualization suggestion:-
I have a data frame like below:-
Here I have 194 countries and the columns are fan_out values which is in percent of the total population.
Like for country AD, the total fan_out value is 2.24 -06 % of ...
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Why it is recommended to use T SNE to reduce to 2-3 dims and not higher dim?
According to wiki it is recommenced to use T-SNE to map to 2-3 dimensional.
I can understand this , if we want to visualizing the data.
If we want to reduce the ...
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Calculating optimal 'phase shift' when comparing two linear datasets to maximise correlation?
Let's say I have two columns of data, when graphed they look like this:
This does not have a particularly wonderful correlation.
On the other hand if I shift one graph 10 datapoints relative to the ...
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How to plot visualization with Interactive Feature Selection in Bokeh, Python
The task is to automate the Visualization. The CSV file contains large nos of features (column names e:g. 32 nos it may increase in future). The task is to plot Interactive Visualization. All the ...
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How to reshape or clean data to be able to visualize it with violin plots?
My end goal is to visualize some data using a violin plot or something similar using Python.
I have the following data in a file (test.csv). The first column is a ...
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What type of visualization is this and what are my options to produce something like it?
I am looking to reproduce the bottom part of the visualization below. What is this type of visualization called? What are my options to reproduce it? Preferably using Python or R, but I'm open to ...
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PCA in a 3D torch
I have a 3D tensor. The rows are different dialogues. The columns utterances (1,...,n) from the dialogue and the cell the ...
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Presentation of data - Correctness of using exponentially weighted moving average values in charts
I have a set of data that I would like to present to an audience in a chart.
The data points span several years and they each year needs to be presented as separate series.
The datapoints are daily, ...
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Applying GradCam to video classification models
In the original paper, it says that GradCam visualization can be applied to any convolution based model. The problem is stated for convolutions that process images. In my case, I am classifying videos ...
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Using ggplot2 to create a bar chart [closed]
So I'm trying to create a simple bar chart of Survive vs Not Survive for the common Titanic data set in R. I keep getting just the number of No's and Yes's, and not the frequencies or counts ...
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How to know the state-of-the-art recommended approaches for data science?
Data science, AI, NLP, and visualization are changing so fast. I wonder if there is a way/blog that shares the latest updates and recommended approach using certain techniques or avoid using others. ...
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What's the issue with my code for visualizing linear regression in 3 dimensions with matplotlib? [closed]
I am trying to use linear regression that takes two variables "Idade" and "LF" and tries to predict a third one, "DGAF". I'm trying to both do the scatterplot with the ...
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